Bitumen genesis and hydrocarbon accumulation pattern of  Well Guizhong-1 in Guizhong Depression

doi:10.7623/syxb201003012

Editorial office of ACTA PETROLEI SINICA ›› 2010, Vol. 31 ›› Issue (3): 420-425.DOI: 10.7623/syxb201003012

• Petroleum Exploration • Previous Articles Next Articles

Bitumen genesis and hydrocarbon accumulation pattern of Well Guizhong-1 in Guizhong Depression

HE Xunyun 1,2 YAO Genshun 1,2 HE Xiaosu 1,2 CHEN Ziliao 1,2 PENG Ping’an 3 XU Zhengyu 1,2 MA Liqiao 1,2 WANG Pengwan 1,2

Received:2009-08-31 Revised:2010-01-08 Online:2010-05-25 Published:2010-07-28

桂中坳陷桂中1井沥青成因及油气成藏模式

贺训云 1,2 姚根顺 1,2 贺晓苏 1,2 陈子炓 1,2 彭平安 3 徐政语 1,2 马立桥 1,2 王鹏万 1,2

1 中国石油杭州地质研究院浙江杭州 310023； 2 中国石油天然气集团公司碳酸盐岩储层重点实验室浙江杭州 310023； 3中国科学院广州地球化学研究所广东广州 510640

通讯作者: 贺训云
作者简介:贺训云，男，1975年5月生，2003年获中国石油大学（北京）硕士学位，现为中国石油杭州地质研究院工程师，主要从事石油地质综合研究工作。
基金资助:
全国油气资源战略选区调查与评价项目“黔南桂中海相地层油气资源前景评价”（XQ-2007-01）部分成果。

Abstract

Abstract:

The reservoir solid bitumen of Guizhong-1 Well in Guizhong Depression of the middle Guangxi Province were analyzed by means of GC, GC-MS, stable carbon isotope, fluid inclusion analysis and bitumen reflectance measurement techniques. The origin and genesis of the solid bitumen in reservoir of Well Guizhong-1 in Guizhong Depression were discussed. On the basis of the origin characteristics of solid bitumen, the main destructive factors for the oil and gas reservoirs were analyzed. In combination of the regional research results, the main destructive factors for the reservoirs of Guizhong Depression were discussed. The potential reservoir-forming pattern of Guizhong Depression was investigated on the properties of reservoir destruction and preservation. The research result demonstrates that the solid bitumen in Well Guizhong-1 comes from the argillaceous rock of the middle-lower Devonian and is the pyrobitumen resulted from oil cracking at high geothermal temperature in the early pools. The main constructive factors for the reservoir in Guizhong Depression include the pyrobitumen and methane cracked from oil of the deeply buried pools in the early stage, the broken pressure systems of oil-cracked gas pools with abnormal overpressure caused by the later structure uplifting and strata denudation, the poor sealing property of the cap rock caused from fractures and faults, and the serious impact of oil-gas pools caused by the magma or hydrothermal ore-forming solution. Moreover, the diffusion and microseeping of natural gas in the pools is also the possible constructive factors of reservoirs in Guizhong Depression. So, the central and western areas of Guizhong Depression with the integrated strata, fairly poor fractures and faults and little magma activities are the favorable plays for hydrocarbon exploration.

Key words: Guizhong Depression, Well Guizhong-1, bitumen genesis, solid bitumen, reservoir-forming pattern, hydrocarbon exploration

摘要：

采用GC、GC-MS、稳定碳同位素、包裹体以及沥青反射率等分析测试技术，对桂中坳陷桂中1井储层固体沥青进行了系统分析，并对其来源及成因等进行了探讨。基于其成因特点，对桂中1井油气藏主要破坏因素进行了剖析，并结合区域研究成果，对桂中坳陷油气藏主要破坏因素进行了系统分析，进而探讨了桂中坳陷油气成藏模式。综合研究表明，桂中1井储层固体沥青来源于中下泥盆统泥质烃源岩，为早期油藏原油高温热裂解形成的焦沥青。桂中坳陷油气藏主要破坏因素有：早期油藏的深埋导致原油裂解为焦沥青和甲烷；后期的构造抬升剥蚀造成“异常高压”气藏压力系统破坏；断裂导致盖层封闭性变差以及岩浆/成矿热液对其附近的油气藏产生严重破坏。此外，天然气扩散、微渗漏作用等也可成为桂中坳陷油气藏遭受破坏的重要因素。因此，桂中坳陷地层保存相对完整、断裂欠发育、岩浆活动影响较小的中西部地区是桂中坳陷有利油气勘探区。

关键词: 桂中坳陷, 桂中1井, 沥青成因, 固体沥青, 成藏模式, 油气勘探

HE Xunyun YAO Genshun HE Xiaosu CHEN Ziliao PENG Ping’an XU Zhengyu. Bitumen genesis and hydrocarbon accumulation pattern of Well Guizhong-1 in Guizhong Depression[J]. Editorial office of ACTA PETROLEI SINICA, 2010, 31(3): 420-425.

贺训云姚根顺贺晓苏陈子炓彭平安徐政语马立桥王鹏万. 桂中坳陷桂中1井沥青成因及油气成藏模式[J]. 石油学报, 2010, 31(3): 420-425.

References

[1]马永生.四川盆地普光超大型气田的形成机制[J].石油学报,2007,28(2):9-14.

Ma Yongsheng.Generation mechanism of Puguang Gas Field in Sichuan Basin [J].Acta Petrolei Sinica,2007,28(2):9-14.

[2]王根海.中国南方海相地层油气勘探现状及建议[J].石油学报,2000,21(5):1-6.

Wang Genhai.Petroleum exploration in the marine strata in southern China:Exploration situation and proposal [J].Acta Petrolei Sinica,2000,21(5):1-6.

[3]曾允孚,刘文均,陈洪德,等.华南右江复合盆地的沉积构造演化[J].地质学报,1995,69(2):113-124.

Zeng Yunfu,Liu Wenjun,Chen Hongde,et al.Evolution of sedimentation and tectonics of Youjiang Composite Basin,South China

[J].Acta Geologica Sinica,1995,69(2):113-124.

[4]蔡勋育,黄仁春.桂中坳陷构造演化与油气成藏[J].南方油气,2003,16(3):6-9.

Cai Xunyu,Huang Renchun.Structural evolution and hydrocarbon reservoir formation of Guizhong Depression [J].Southern China Oil &Gas,2003,16(3):6-9.

[5]吴国干,姚根顺,徐政语,等.桂中坳陷改造期构造样式及其成因[J].海相油气地质,2009,14(1):33-40.

Wu Guogan,Yao Genshun,Xu Zhengyu,et al.Structural patterns and origin of tectonic reformation in Guizhong Depression

[J].Marine Origin Petroleum Geology,2009,14(1):33-40.

[6]马立桥,董庸,屠小龙,等.中国南方海相油气勘探前景[J].石油学报,2007,28(3):1-7.

Ma Liqiao,Dong Yong,Tu Xiaolong,et al.Petroleum prospect of marine sequences in South China [J].Acta Petrolei Sinica,2007,28(3):1-7.

[7]刘树根,罗志立.从华南板块构造演化探讨中国南方油气藏分布的规律性[J].石油学报,2001,22(4):24-30.

Liu Shugen,Luo Zhili.Study on the distribution characteristics of petroleum deposits from the plate tectonic evolution in South China [J].Acta Petrolei Sinica,2001,22(4):24-30.

[8]陈洪德,侯明才,刘文均,等.海西—印支期中国南方的盆地演化与层序格架[J].成都理工大学学报：自然科学版,2004,31(6):629-635.

Chen Hongde,Hou Mingcai,Liu Wenjun,et al.Basin evolution and sequence stratigraphic framework of south of China during Hercynian cycle to Indo-Chinese epoch [J].Journal of Chengdu University of Technology：Science & Technology Edition,2004,31(6):629-635.

[9]赵孟军,张水昌,赵陵,等.南盘江盆地古油藏沥青、天然气的地球化学特征及成因[J].中国科学:D辑,2007,37(2):167-177.

Zhao Mengjun,Zhang Shuichang,Zhao Ling,et al.Geochemistry characteristics and genesis of the paleoreservoir bitumen and natural gas in Nanpanjiang Basin [J].Science in China:Series D,2007,37(2):167-177.

[10]Jacob H.Classification,structure,genesis and practical importance of natural solid bitumen (migrabitumen) [J].International Journal Coal Geology,1989,11(1):65-79.

[11]Hwang R S,Teerman S,Carlson R.Geochemical comparison of reservoir solid bitumens with diverse origins[J].Organic Geochemistry,1998,29:505-518.

[12]Stasiuk L D.The origin of pyrobitumens in Upper Devonian Leduc Formation gas reservoirs,Alberta,Canada:An optical and EDS study oil to gas transformation [J].Marine & Petroleum Geology,1997,14(7/8):915-929.

[13]高志农,胡华中.高压对天然沥青结构组成演变的影响[J].沉积学报,2002,20(3):499-503.

Gao Zhinong,Hu Huazhong.High pressure to the impact on the evolution of texture and compositon of natural bitumen [J].Acta Sedimentologica Sinica,2002,20(3):499-503.

[14]林峰,王廷栋,代鸿鸣,等.四川盆地碳酸盐岩储层中固体运移沥青的性质和成因[J].矿物岩石地球化学通报,1998,17(3):174-178.

Lin Feng,Wang Tingdong,Dai Hongming,et al.The properties and genesis of solid migrabitumen of carbonate reservoirs in Sichuan Basin [J].Bulletin of Mineralogy,Petrology and Geochemistry,1998,17(3):174-178.

[15]秦建中,付小东,刘效曾.四川盆地东北部气田海相碳酸盐岩储层固体沥青研究[J].地质学报,2007,81(8):1065-1071.

Qin Jianzhong,Fu Xiaodong,Liu Xiaozeng.Solid bitumen in the marine carbonate reservoir of gas field in the northeast area of the Sichuan Basin [J].Acta Geologica Sinica,2007,81(8):1065-1071.

[16]廖宗廷.广西大厂超大型锡多金属矿床成矿条件及成矿模式[J].地质找矿论丛,1994,9(2):1-9.

Liao Zongting.On the metallogenic condition and model of Dachang Super Sn Polymetallic deposit in Guangxi [J].Contributions to Geology and Mineral Resources Research,1994,9(2): 1-9.

[17]廖宗廷,李光明.巴力—龙头山生物礁古油气藏的特征及成因[J].同济大学学报,1999,27(1):92-95.

Liao Zongting,Li Guangming.On characteristics and origin of ancient oil and gas accumulation in Bali-Longtoushan organic reef

[J].Journal of Tongji University,1999,27(1):92-95.

[18]王铜山,耿安松,熊永强,等.塔里木盆地海相原油及其沥青质裂解生气动力学模拟研究[J].石油学报,2008,29(2):167-172.

Wang Tongshan,Geng Ansong,Xiong Yongqiang,et al.Kinetic simulation study on generation of gasous hydrocarbons from the pyrolysis of marine crude oil and its asphaltene in Tarim Basin [J].Acta Petrolei Sinica,2008,29(2):167-172.

[19]张水昌,朱光有.四川盆地海相天然气富集成藏特征与勘探潜力[J].石油学报,2006,27(5):1-8.

Zhang Shuichang,Zhu Gguangyou.Gas accumulation characteristics and exploration potential of marine sediments in Sichuan Basin [J].Acta Petrolei Sinica,2006,27(5):1-8.

[20]刘全有,金之钧,王毅,等.塔里木盆地天然气成因类型与分布规律[J].石油学报,2009,30(1):46-50.

Liu Quanyou,Jin Zhijun,Wang Yi,et al.Genetic type and distribution of natural gas in Tarim Basin [J].Acta Petrolei Sinica,2009,30(1):46-50.

[21]胡安平,陈汉林,杨树峰,等.卧龙河气田天然气成因及成藏主要控制因素[J].石油学报,2008,29(5):643-649.

Hu Anping,Chen Hanlin,Yang Shufeng,et al.Origin of natural gas and main controlling factors of reservoirs in Wolonghe Gas Field

[J].Acta Petrolei Sinica,2008,29(5):643-649.

[22]Waples D W.The kinetics of in-reservoir oil destruction and gas formation:constraints from experimental and empirical data,and from thermo-dynamics [J].Organic Geochemistry,2000,31(6):553-575.

Bitumen genesis and hydrocarbon accumulation pattern of Well Guizhong-1 in Guizhong Depression

桂中坳陷桂中1井沥青成因及油气成藏模式

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